As residential energy markets open to competition, consumers can choose from a range of tariffs offered by different suppliers. We examine the relationship between the fixed charge levied on each consumer, and the variable charge per unit of energy used across all these tariffs. Data are the...

L'analyse économique offre deux visions distinctes de la notion de concurrence, que l'on peut faire correspondre plus largement à deux écoles d'appréhension des phénomènes économiques. Dans l'analyse traditionnelle, tout d'abord, la concurrence est définie et étudiée comme un état du...

This work explores some distributional properties of aggregate output growth-rate time series. We show that, in the majority of OECD countries, output growth-rate distributions are well-approximated by symmetric exponential-power densities with tails much fatter than those of a Gaussian. Fat...